Dr. Tanja Bosak

Associate Professor of Geobiology
Contact: tbosak[at]

Bosak CV

Dr. Mirna Daye

Postdoctoral Associate
Contact: mdaye[at]



Matthew Joss

Graduate Student
Contact: mattjoss[at]

I am studying mechanisms associated with the burial and sequestration of organic carbon within marine sediments and their impact on the global carbon cycle. In particular, I am interested in studying how the physical protection of organic matter is enhanced or reduced by different iron concentrations. Currently my experiments involve studying clay precipitation mediated by heterogeneous cultures of marine cyanobacteria.



Emily Matys

PhD Student in Geobiology
Contact: ematys[at]

Through organic geochemical and micropaleontological analysis, I study the information preserved in sedimentary archives. As part of the Bosak lab, I continue to characterize body fossils from the Neoproterozoic interglacial period to better understand early eukaryotic radiation and possible connections with the dramatic environmental change associated with the Sturtian low-latitude glaciation.



Sharon Newman

PhD Student in Geobiology
Contact: sharon.newman[at]

My current research focuses on microbe-mineral interactions. I employ a variety of microscopy techniques and chemical analyses to investigate the formation of minerals around microbial filaments. My goals are to explore the mechanisms of fossilization  and to determine what depositional environments are most conducive to fossilization.


mihkelDr. Mihkel Pajusalu

Postdoctoral Associate
Contact: pajusalu[at]

Currently I am investigating how bacterial gas production and consumption vary dependent on atmospheric composition, mainly focusing on photosynthesis. The goal is to have a better estimate about how life could affect the atmosphere on an exoplanet and thereby provide better markers for detecting life in the universe.



Ana De Santiago Torio

Research Associate
Contact: anast[at]

I am passionate about microbiology. I’m currently interested in understanding how sulfate-reducing bacteria respond to variable environmental conditions, such as nutrient limitation, and how those changes affect their metabolism. Ultimately, this might give us an insight into how sediments are influenced by the microbes living in them.


Dr. Andras Zsom

DFG Fellow
Contact: zsom[at]

Friends of the Lab

Gilad Antler

PhD Candidate, University of Cambridge.

Dr. Lilliam Casillas

Principal Investigator, Biology Department, University of Puerto Rico- Humacao.


Dr. Gill Geesey

Professor, Department of Microbiology, Montana State University


Dr. Bulent Icgen

Associate Professor, Department of Environmental Engineering, Middle East Technical University (Visiting Professor at MIT Summer ’15)


Elizabeth Johnson

Graduate Student, Department of Marine Earth and Atmospheric Sciences, North Carolina State University

Dr. Dan Lahr

Assistant Professor, University of São Paulo, Brazil

Dr. Francis Macdonald

Associate Professor, Harvard University

Eileen Malloy-Molzberger

Graduate Student, Department of Biochemistry, Duke University

Dr. Laura Meredith

NSF-AGS Postdoctoral Fellow, Stanford University

Dr. Kristen Miller

Postdoctoral Researcher, MIT

Dr. Sara Pruss

Associate Professor, Smith College.  

Dr. Florence Schubotz

Postdoctoral Researcher, MARUM/University of Bremen

David Wang

PhD student at MIT




Former Members

Dr. Alexander J. Evans

now a postdoctoral fellow at Columbia University – Lamont-Doherty Earth Observatory.

Kate Harris

pursuing a project to cycle the silk road:

Dr. Biqing Liang

now at Academia Sinica in Taiwan.

Dr. Giulio Mariotti

currently an assistant professor at Louisiana State University.


Dr. Alexander Petroff

now a postdoctoral fellow at Rockefeller University.

Dr. Min Sub Sim

now at Agouron Postdoctoral Fellow at California Institute of Technology.

Dr. Stefanie Templer

currently in Emmi, Switzerland.

Dr. Shikma Zaarur

currently in New Zealand

Former undergraduate students: Joan Chen, Rachel Harris, Diana LaScala-Gruenewald, Anastasia Maheras, Deepa, Rao, Kristen Whaley, Jose-Luis Lugo (U Puerto Rico), Kevin Gildea


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